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Testing HPX

To ensure correctness of HPX, we ship a large variety of unit and regression tests. The tests are driven by the CTest tool and are executed automatically on each commit to the HPX Github repository. In addition, it is encouraged to run the test suite manually to ensure proper operation on your target system. If a test fails for your platform, we highly recommend submitting an issue on our HPX Issues tracker with detailed information about the target system.

Running tests manually

Running the tests manually is as easy as typing make tests && make test. This will build all tests and run them once the tests are built successfully. After the tests have been built, you can invoke separate tests with the help of the ctest command. You can list all available test targets using make help | grep tests. Please see the CTest Documentation for further details.

Running performance tests

We run performance tests on Piz Daint for each pull request using Jenkins. To run those performance tests locally or on Piz Daint, a script is provided under tools/perftests_ci/local_run.sh (to be run in the build directory specifying the HPX source directory as the argument to the script, default is $HOME/projects/hpx_perftests_ci.

Adding new performance tests

To add a new performance test, you need to wrap the portion of code to benchmark with hpx::util::perftests_report, passing the test name, the executor name and the function to time (can be a lambda). This facility is used to output the time results in a json format (format needed to compare the results and plot them). To effectively print them at the end of your test, call hpx::util::perftests_print_times. To see an example of use, see future_overhead_report.cpp. Finally, you can add the test to the CI report editing the hpx_targets variable for the executable name and the hpx_test_options variable for the corresponding options to use for the run in the performance test script .jenkins/cscs-perftests/launch_perftests.sh. And then run the tools/perftests_ci/local_run.sh script to get a reference json run (use the name of the test) to be added in the tools/perftests_ci/perftest/references/daint_default directory.

Issue tracker

If you stumble over a bug or missing feature in HPX, please submit an issue to our HPX Issues page. For more information on how to submit support requests or other means of getting in contact with the developers, please see the Support Website page.

Continuous testing

In addition to manual testing, we run automated tests on various platforms. We also run tests on all pull requests using both CircleCI and a combination of CDash and pycicle. You can see the dashboards here: CircleCI HPX dashboard and CDash HPX dashboard .